Tesla’s roadmap to producing 20 mil
thus allowing for shear transfer between the sheets. In this architecture, the battery cells function as a honeycomb structure in much the same way as the aluminium honeycomb structure between carbon fibre face sheets used in the crash structures of modern Formula One cars.
Using the steel casing of the individual battery cells to transfer shear between the upper and lower sheets, this honeycomb battery structure gains incredible torsional stiffness, which is at least an order of magnitude better than any existing car. This design also achieves torsional stiffness in convertibles that is higher than any existing sedan.
Moreover, with the cells now moved closer to the centre of the car, this improves volumetric efficiency, safety in case of a side impact, and reduces the polar moment of inertia for better handling.
This complete revolution in body and battery engineering achieves a 10% mass reduction, 14% range increase opportunity, and massive cost savings due to an astounding 370 fewer parts. And even more incredible, this simpler, smaller, integrated structural battery also has massive implications for the body factory of the future, including a 55% reduction in capex investment per GWh, as well as a 35% reduction in floor space. At the battery pack level this is worth another 7% reduction in $/KWh cost.
Extraction and Mining – % reduction in $/KWh cost to be determined
Apart from Tesla’s foray into nickel extraction from nickel ore, Musk and Baglino pointed out that there are enough lithium deposits in the state of Nevada to electrify the entire transportation fleet